Home / 19,876.09-27,429.53-10,923.83

Finding the Fourth Proportional to 19,876.09, 27,429.53 and 10,923.83

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Solution

The fourth proportional to 19,876.09, 27,429.53 and 10,923.83 is: 15,075.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.09 : 27,429.53 = 10,923.83 : x
  2. Step 2: Convert to fraction form
    19,876.09/27,429.53 = 10,923.83/x
  3. Step 3: Cross multiply
    19,876.09x = 27,429.53 × 10,923.83
  4. Step 4: Simplify right side
    19,876.09x = 299,635,468.08
  5. Step 5: Solve for x
    x = 299,635,468.08/19,876.09
  6. Step 6: Final answer
    x = 15,075.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.